Mechanical adding device.



0. RQMARDTINBAU. MECHANICAL ADDING DEVICE.

PATENTED MAR. 20, 1906.

APPLICATION FILED MAR.31, 1903.

13 SHEETSSHEET 1.

II D" WITNEE:

IMVENTOR SEE) No. 815,725. I PATENTED MAR. 20, 1906. C. R MARTINEAU.MECHANICAL ADDING DEVICE.

APPLICATION FILED MAILBl, 1903.

13 SHEETS-SHEET Z.

MVENTQR mm BY f No. 815,725. PATENTED MAR. 20, 1906.

' 0. R. MARTINEAU.

MBGHANIGALADDING DEVICE.

APPLICATION FILED MARSI, 1903.

13 SHEETS-SHEET 3v imv 'F NTUR 1%, 815, 25. PATENTED MAR. 20, 1906. U.R. MARTINEAU. IEGHANIGAL ADDING DEVICE.

APPLICATION FILED MAR.31, 1903.

13 SHEETSSHEET 4.

g mmlmm :NO. 815,725. PATENTED MAR.- 20,1906.

I 0. RI. MARTINEAU, MECHANICAL ADDING DEVICE" APPLIOATIOH FILED MAE. 31,1903 13 SHEETS-SHEET 5.

in v E H TD R No. 815,725. v PATENTED MAR. 20, 1906.

G. R. MARTINEAU. MEGHANIGAL ADDING DEVICE.

APPLIOATION FILED MAB-.31, 1903.

13 SHEETS-SHBET 6.

IHVEHTOR BY WM/QW PATENTED MAR.20,1906.

13 SHEETSSHEET 7.

INVENTOFK O. R. MARTINEAU. MECHANICAL ADDING DEVICE. APPLIUATION FILED'MAR a1, 1903 WITNESS-3E5 PATENTE'D MAR. 20; 190

c. R. MARTINEAU, MEUHANIGAL ADDING DEVICE. APPLICATION FILED MAR, 31,1903- 13 SHBETflr-BKEET 8 mll-rmcsszs INVEHTOR PATENTED MAR. 20, 1906.

C. R. MARTINEAU. MECHANICAL ADDING DEVICE.

APPLIGATION FILED MAR.31, 1903.

13 SHEETS-SHEET 9.

v im/EH OR any/142 BY I WITH E55 ES No. 815,725. 7 PATENTED MAR. 20,1906.

' C. R. MARTINEAU.

MECHANICAL ADDING DEVICE.

APPLICATION FILED ML ..31, 1903.

13 SHEETS-SHEET 10.

000 000 or 000 000 oq Ala 1W MZZZZQO BY im PATENTED MAR. 20, 1906.

0. R. MARTINEAU. MECHANICAL ADDING DEVICE. APPLICATION FILED MAR 31 196313 SHEETS-SHEET 11.

. IIIIIIIIIIIIIIIII mvEH o R 4: WIT'H E55 E2:

No. 815,725. PATENTBJJ MAR.20, 1906.

' 0. R. M ARTINEAU.

MECHANICAL ADDING DEVICE.

APPLICATION FILED mam, 1903.

13 SHEETS-SHEET 12.

. INVEHTOR fumfi mzw PATENTED MAR. 20, 190.6.

" 0. R.'MARTINBAU.

""MEGH'ANIGAL ADDING DEVICE,

APPLICATION FILED MAR-31, 1903.

13 SHEETS-SHEET l3 wfrwzasas;

INVEZHTOR UNITED s'rrrras PAEENT orrrcn.

CLARENCE R. MARTINEAU, OF ALBANY, NEW YORK, ASSIGNOR TO TYPEWRITERADDING MACHINE COMPANY, A CORPORATION OF 7 NEW YORK.

MECHANiGAL ADDING DEVICE.

g Specification oi Letters ,Patent.

Patented March 20, 1906.

Application filed March 31, 1903. Serial No 1. 3.414.

To ail whom It 11m 1 concern: I

Be it known that I, CLARENCE R. MARTIN- EAU, a citizen of the UnitedStates of Amer ica, and a resident of the city and county of Albany andState of New York, have invented certain new and useful Improvements inMechanical Adding Devices, of which the following is a specification.

My invention relates to mechanical adding devices; and'the object of myinvention is to provide an adding device and tabulator adapted to beconnected with a type-writing machine, so adjusted and connected up thatthe adding 1flevice may be operated in connection wit the type-writingmachine, together with such elements and combinations as are hereinaftermore expressly set forth and claimed. 1 attain this object by means ofthe mechanism illustrated in the accompanying drawings, in which Figure1 is a plan. Fig. 2*is a side elevation. Fig. 3 is a perspective view ofthe adding and carry device with parts broken away. Fig. 4 is a frontview of the adding and carry device with parts broken away. Fig. 5 is aside elevation of the addingand carry device with parts broken away.Fig. 6 is a perspective view of the driving-frame. Fig. 7 is a detailside elevation of the rackpins and their connections with parts brokenaway. Fig 8 is a horizontal section along the lines Z a on Fig. 7. Fig.9 is a horizontal section along the lines Y Y on Fig. 7. Fig. 10 is aperspective view of one of the addingwheels and operating-rack withparts broken away. Fig. 11 is a rear elevation of the operating-rack.Fig. 12 is a section along the lines "W W on Fig. 10. Fig. 13 is aperspective view of the pawl. Fig. 14 1s a perspective view of the trip.Fig. 15 is a section along the lines X X on Fig. 14. Fig. 16 is a detailview in elevation of the key and yoke to return the wheels to 0. Fig. 17is a horizontal section along the lines V V on Fig. 16. Fig. 18 is aperspective view of one of the retaining-pins. Fig. 19 is' a rearelevation of the yoke shown in side elevation in Fig. 16. Fig. 20 is aperspective view of a type-writer, showing manner of attaching frame foradding device (not shown) there to. Fig. 21 is a perspective View of theU-shaped key connection. Fig. 22 is a front elevation of the tabulator.Fig. 23 is a plan of the tabulator. Fig. 24 is a side elevation of thetabulator. Fig. 25 is a detail view in elevation of a modified form ofmeans for raising the adding-wheel racks. Fig. 26 is an end elevation,with parts broken away, of the modified form shown in Fig. 25. detailend elevation of the modified form shown in Fig. 25, showing connectionbe Fig. 27 is tween the lever and the gear and the addingwheel rack Fig.28 is a perspective vie'iv with parts broken away and unnecessarytratingthe carry device, showing position of parts after full movement oflever.

Similar characters refer to similar parts throughout the several views.

I have provided a device for adding 001- umns of figures adapted to beconnected with a type-writing machine, so adjusted that the figureswritten by the type-writer on a paper placed in the usual manner on thetype-writer carriage may be mechanically added and the amount of theaddition shown by the wheels of the adding attachment, from which it maybe copied by the typewriter onto the paper at the foot of the col.-

umn added.

I have arranged my addin device in such a manner that it can oe-readi lyattached to a type-writing machine or removed therefrom without changingin any way the type-writing machine.

The adding wheels F, Fig. 3, provided with letters f on thecircumference thereof, respectively, are operated by racks H, whichracks are set 'in motion by the operation of those type writer keyswhich print the fig arcs in the ordinary use of thetype-wrih Therotation of the wheels is determined the extent oi" the nwvcment of theracks ll, respectively, and the movement of the va ies H is determinedby certain pins K, which are projected into the path of the movement ofshoulder h, projecting from the racks H, respectively, and prevent the111i hanism which ICC causes the racks to move from carrying the rackspast the projected pin. pose a nest of pins K is arranged across themachine, and a carriage R, containing, preferably, a row of nine pinsa avertical column, is arranged to reciprocate backward and forward acrossthe adding device, said carriage being adapted to move in unison withthe carriage of a type-writing machine.

For the purpose of arranging my adding device so that it may be readilyattached to any style of type-writing machine I have provided on thebase-plate A (see Fig. 1) a series of adjustablefeet B, each having asocket 1), within which the foot of the type writing machine may enter,and provided with a'slot f) and bolt 5 the belt passing into and throughthe plate A. Each of the feet B may thus have a universal movement, bymeans of which the supports may be adjusted to fit the feet of anytype-writing machine.

In Fig. 20 I show in outline one means of attaching the carriage of atype-writing machine to the carriage of the adding device, (not shown,)which may be done, as therein shown, by securing the arm to thetypewriter carriage by means of the bolts (1 or by any other suitablefastening device. In Fig. 2 the arm 0 engages with a rod D, carrying arack engaging with the wheelE, which rack is capable of a reciprocatingmotion within the dovetailed-formed slot (1, Fig. 20, within the strip(1', secured to the front D of the adding device.

The carriage proper (see. Figs. 1, '2, and 7) of the adding-machineconsists of a casting It, carrying a series; of actuating-pins M,arranged, preferablyjin a vertical column containing nine pins, saidcarriage also carrying with it the bifurcated support 1, Figs. '2 and1b, to which is fulcrumed the rocking lever P, adapted for placing outof position the retaining-pins P, as hereinafter more particularly setforth.

I attach to one side of the carriage R (see Fig. 1) a band E, whichpasses over the pulley e at the side of the machine and about a wheel E,the wheels E and E being mounted on the same spindle E the wheel E engaging with the rack on the rod D At the otherside of the -arriageR, Iattach the band E passing over the pulley e and secured to a spring-coilE. E and is to cause the band E to be wound onto the wheel E as thecarriage It is moved from left to right, the same mcvement operating tounwind the coil-spring E. The result is that when the carriage R ismoved to the ri ht the coil of the spring E will be elongated. Thisoperation of the bands, coilspring, and connections therewith, with thecarriage It, is substantially the same as'that For this pur- Theoperation of the bands tion with the carriage of the type-writer,meshing with the wheel E causes said wheel E to move in the directionopposite to that of the said rod D. is apparent that as the carriage ofthe typewriting Ina-chine moves from right to left the carriage of theadding device will move in the opposite direction-that is, from'left toright.

For the purpose of adding the figures I have arranged a series ofpreferably nine adding-wheels F, (see Fig. 3,) along the periphery ofeach of which are projecting blocks f, or the wheel cut leavingprojections, upon each of which projection is placed a numeral. Ipreferably divide each wheel into three sections circumferentially, eachsection containing on its periphery the figures from 0 to 9, inclusive.I donotlimit myself, however, to this particular division of the wheel.t

I mount the wheel F on a suitable shaft D supported by the frame of themachine. (See Figs. 1, 3, and 10.) In connection with each wheel F andmounted on the shaft D-, adjacent to the wheel, I place-a segment G,which engages with .the operating-rack II and which segment engages withthe addingwheel F by means of the pawl g, placed within the groove g,Fig. 12, in the plate g, which is attached to the segment G, and whichpawl g is retained in position within the groove g by means of thespring g, the end of the pawl g engaging with the blocks or projectionsf on the wheel F, which extend slightly beyond the face of thewheel. As thus arranged the movement of the rack ll will cause theadding-wheel F to revolve, since the pawl g engages with the projectionson the periphery of said wheel F. It will be noted, however, that theoperating end of the-pawl g is provided with an inclined surface, makingone. side of the pawl 9 longer than the other. This is for the purposeof allowing the wheel F to revolve in one direction without engaging thepawl g. T bus, as shown in Fig. 10. as the rack H moves forward itcarries with it the segment G and causes the wheel F to revolve, becausethe point of the pawl 9 engages the projection on the periphery of thewheel F. The wheel F, however, could be revolved in the same directionwithout moving the rack, so far as the pawl g is concerned.

The rack H is preferably provided along its rearedge with a groove,which may be made by causing alternate portions of the rack to be bentoutward on opposite sides, as shown in Figs. 10 and 11. v I do not,however, limit myself to this construction of the rear edge of the rack.The spring Figs. and 7, is secured at one end to the segment-ah wheel Jby passing the end of the Wire of in use inthe operation of the carriageof a which said spring is constructed through a type-writing. machme.The rod D, carrying suitable eye (not shown) in the periphery of therack, (see Fig. 1,) which moves in connecthe segmental wheel andsecuring same there As thus connected up it to or attaching said springto the wheel in any suitable manner. At the other end it is secured tothe rack H by passing the end of the wire of which said spring isconstructed through an eyelet in the rack and securing the same orattaching the spring to the rack in any suitable manner at or near thatend of the rack farthest from the segment G. Thus the movement of thesegmental wheel J will by the action of the s ring j-raise the rack H,and thus rotate tie adding-wheel.

. Each rack H has at its lower end a projecting shoulder h, (see Figs. 2and L) "and adjacent to each rack I arrange a' series of pins K,preferably in a vertical line, which may be projected within the path ofthe movement of the shoulder h of the rack H, thus determining thelength of movement of the rack H, and therefore the rotation of thewheel F. In Fig. 7 I show in elevation a portion of the pins K, in whioh the upper one of the series is projected within the pathway of theshouler h. (See Figs. 2 and 7 The pins Kare supported within suitableplates L, and in the carriage R, arrange in like, preferably, ver' ticalline a series of actuatin pins M, supported in bars m, similar to t 1eplates suptuating-pin in its horizontal pane adjacent The side ofpreferably p porting the pins K. Between the bars m I ace a coil-springM (see Figs. 1 and 7) for the purpose of causing the actuating-pins M toassume their normal position after having been forced forward for thepurpose of projecting one of the pins K within the path of the shoulderh.

For the purpose of im arting motion to the actuating-pins M (see igs. 2,6, and 7) I arrange a series of drivers N, which are in the formofframes, (shown in Fig. 6,) said drivers having their side pieces inthe form of an obtuse angle and secured to the frame of the machine-byspindle n. (See Fig. 2.) The upper portion of the driver N isadapted toengage one of the actuating-pins M. (See Figs. 1, 2, and 7.) It isunderstood that there are a series of these drivers mounted on the samespindle 12, each oneen aging the ac to its particular driving portion.the driver-frame N opposite the actuating portion N is preferablyprovided with a slotted lug N (see Fig. 6,) through which slot the endof the lever O asses, (see Fig. 2,) the lever O, Fig. 2 being ulcrumedat O and preferably ca able of movin forward on the fulcrum, so t at itmay be rfisengaged when desired by pullin the rod 0 forward. This may beaccom fished by making the key connection 0 o a U-shaped form, as shownin Fi 21, the sides of the U-shaped' connection 'tting underneathkey-bar O and thus ermitting of the..movement of the lever O ackward orforward by operation of key 0 The lever O is preferably provided withthe projection 0, which in its normal position. en gages with thekey-bar D", which key-bar may be operated by pressing on the keyfO. Itis apparent that when one strikes the key '0 the key-bar is'depressed,which will depress one end of the lever O and raise the other end, whichwill in turn raisethe side N of the driver-frameN, with which itengages, and thus press forward the driver N ofthe driver-frame N,causing it to engage with an actuating-pin M adjacent to said driver,which will force the pin K, registering with the particularactuating-pin. M, within the path of the shoulder h and determine theamount of rotation which will. be allowed the adding-wheel. (See Figs. 2and 7.) -In order that each of the racks may be held normally inposition, I place a retaining-pin P, Figs. 2, 7, and 18, preferablyright-angled, at the end of the rack,- said pin passing through therackand engaging with the shoulder p, Figs. 2 and 16, on the frame ofthe machine.

When the rack is to be moved, it is of course necessary to drive thepins P (see Fig. 2) out of contact with the shoulders 29, and

this I do by placinga rocking lever P adj acent to each retainingpin P,so weighted that it will normally be out of contact therewith, and whichrocking lever is mounted in connection with the carriage R of the addingdevice by suitable brace r and provided near one end with a horizontalportion 1", adapted to engage with the bell crank lever S, mounted onthe spindle n, so arranged that when one member s of the bell-crank S israised the rocking lever P is put in motion, the upper end of whichbeing provided with the projection P forces the retaining-pin P out ofcontact with the shoulder p and allows the rack to move. For the purposeof returning the bell-crank lever S to its normal position after it hasbeen struck I preferably arrange a spring 5 to the member s of thebellcrank lever S, the resiliency of said spring tending to depress saidmember and relieve the pressure on the rocking lever P,

which being weighted will resume its normal position.

For the purpose of imparting motion to the adding-wheels I have arrangedon one side of the machine, preferably at the left side of the operator,a lever T, (see Fig. 1,) which may have a handle T. mounted inconnection with the frame of the machine and by means of a segment U engages with a gear a on the shaft 1, to which is keyed the segmentalwheel J, Fig. 2. On the opposite end of the shaft 1, Figs. 2 and 5,

is the gear 2, engaging with the gear 3 on the shaft 4, which shaft {1has an enlarged portion 5, extending partially around the shaft, leavingon one side of the shaft a flattened portion 6. At the end of the shaft4, Fig. 3, opposite the flattened portion 6 I arrange a dog whichprojects toward the front of the ma chine. (See Figs. 2, 3, and'5.

Between each of. the adding-wheels I ar- The lever is' range a latch 8,which has an upwardly-projecting inclined portion 9, adapted to engagewith one of the three lifts 10, placed on the side of the adding-wheel.The lifts 10 are provided with an inclined portion 11, corresponding tothe inclined portion 9 of the latch and so arranged that as theaddingwheel in its rotation causes the lift 10 to engage with the latch8 it will depress the latch. The latch also has cut into it a projection12, adapted to engage with a lip 13 on the trip lqthe lip 13, Fig, 14,being a horizontal pro jecting portion near one edge of the top of thetrip 14. The trip 14 is provided at its end with an adjustable" pawl 15,adapted to engage with one of the projections f on the next adj acentwheel F. The lower portion of the trip 14 has attached to it a spring15, (see Fig. 5,) which spring is attached at 16 to the frame of themachine. The trip 14 is also provided with a projecting arm 18,extending toward the rear of the machine, with which the enlargedportion 5 of the shaft 4 engages during a part of the revolution of saidshaft. When, however, in the revolution of the wheels F one of the lifts10 engages the projection 9 on the latch 8, the latch ispresseddownward, and the projection 12 thereon releases the lip 13 ofthe trip, allowing the spring 15 to move the wheel F one space, the pawl15 on the trip being in engagement with one of the projections f on saidwheel when the enlarged portion 5 of the shaft 4 is removed from contactwith the arm 18 of the trip.

In the movement of the shaft 1 the enlarged portion 5 will strikeagainst the arm 18, as shown by dotted lines in Fig. 5. and force thetrip back in position,eausing the projection 12 to-again engage withthe. lip 13, as shown in full lines, Fig. 5. It is understood. thatthere is a trip and latch for each of the adding-wheels F. Thisoperation of the latch and trip is for the purpose of making the carryin the addition of the wheelsthat is, to carry the tens to hundreds andthe hundreds to thousands, &c.

I For the purpose of insuring the position of the latches, which, by theway, are mounted upon a spindle 20, secured at its ends in a suitablemanner to the frame of the machine, I place a guard (see Figs. 3 and 5)in the form of an open frame, which guard has a portion 21 restingagainst the under side of the latches S and another portion 22, providedat its end with a guardarm 23, adapted to .come in contact with the dog7 in such a manner that in the revolution of the shaft 4, to whichthedog 7 is attached, the guard-arm 23 may be raised, enabling the latch8 to be depressed when the lifts 10 engage their inclined ends 9 for thepurpose of making the carry, as hereinbefore described.

l. have shown in Figs. 2 8, 29,and30 an illustration, step by step, ofthe action that takes place to accomplish the carry.

Fig. 28 shows the position of the parts before operation and theposition which the "ing the pinion u, is at the extreme end of thesegment in the position that it occupies before the lever T is operated.In-this figure also the trip 14 is unlockedthat is, the flattenedportion 6 of t'aihaft 4 engages the arm 18. The guard 21 22 isdepressed. and therefore does not engage the latch S, and the lip 13 isout of engagement with the projection 12 on the latch 8, so that Fig. 28shows the carry apparatus entirely out of connection ready to beoperatedupon. Fig. 29 shows the position of the parts after the lever T has beendrawn forward a portion of its throw, the gear 3 has been rotated, but acomplete revolution has not been made, the dog 7 on the shaft 4 isengaged with the guardarm- 23, and the portion 21 on the guard has beenbrought in contact with the latch S. The rounded portion. 5 of the shaft4 is engaged with the arm 18 of the trip 11, and the lip 13 is engagedwith the projection 12 in the opening in the latch 8. It will benoticedthat the lift 10 on the wheel F is about to on- I gage the portion 9 ofthe latch 8 for the purpose of making the carry.

in Fig. 30 I show the parts after the lever 7- has been drawn to theextent of its throw. The dog 7 has passed the end of the guardarm 23,allowing the guard 21 to fall awav from connection with the latch 8. Thelift 10 has engaged the latch at-9 and has released the lip 13 fromconnect-ion with the projection 12. The rounded portion 5 of theshaft,.however, still holds it :ked the trip 14, although the lip hasbecome disengagedv from the projection 12 on the latch S. \Vhen thelever T is forced back to its first position, (shown in Fig. 28,) theshaft 4 willbe rotated, which will remove the rounded portion 5 of theshaft from contact with the arm 18, and the spring 15 will be allowed topull forward the trip 14 at its lower end and cause the wheel F, withwhich the pawl is in engagement, to be moved one space. After the leverhas reached the position shown in Fig. 28, which is thus accomplished byreversing the movement of the lever, the parts will be in the positionshown in Fig. '28, the carry has been completed, and the parts are inposition for a further operation of the machine.

In there is no carry the first step illustrated in the movement afterthe parts have left the position shown in Fig. 28 will be thatillustrated in Fig. 29, in which the rounded portion 5 of the'shaftengages the arm 18 of the trip, the lip 13 engages the projection12 in the latch 8, but there is no lift 10 about to engage the portionS) of the latch S, as shown in Fig. 20. 'lherefore afterthe movement ofthe wheel F the latch S is still in the position that it occupies inFig. 29 even after the le- 7 being locked thereby the li ver has beenmoved to the position shown in Fig. 30, and although the guard 21 ismoved away from contact with the latch, the latch being held in thisposition by the engagement ofthe lip 13 with the projection 12, thelatch As the lever is reversed to take the position shown in Fig. 28 andthe shaft 4 is rotated, so that the fiattened portion 6 comes under thearm-18, still the connection between the latch 8, made by 13 andprojection. 12, remains intact and t ey are locked together, andtherefore the adding-wheel, with which the pawl 15 engages, is notmoved. Thus there are two ways of lockin the trip 14first, by means ofthe enlarged portion 5 of the shaft 4 engaging the arm 18, and, second,by the engagement of the lip 13 and the projection 12 of the latch 8,respectively, which will hold the trip locked even when the flattenedportion of the shaft is u permost. The trip may be thus locked by eitherof the two ways, or they may act together to accomplish this result, asshown in Fig. 29, where the rounded or enlarged portion 5 lip 13 engagesthe projection 12. Thus both act together to lock the trip. In Fig. 30,-b

however, the first manner of locking the trip isshowrr. The lip andprojection are disengaged while the enlarged portion 5 is in contactwith the arm 18. It is understood,of course, that the open guard 21 isused. for the purpose of order that the trip 14.

The operation of, the machine so far as has already been described is asfollows: The operator strikes on the keyboard the figures which hewishes to have placed on his paper. The type-writer makes the figures.The same key epresses the lever O, which causes, by means of the driver1*, the pins corresponding to the figures to project in the pathway ofthe shoulder h of the respective racks H. At the same time theretaining-pin P of each of the racks corresponding to the pins struck isforced out of contact with said shoulder, leaving the racks free tomove. The lever is then pulled forward, setting in racks, because of themovement mental wheel J, to which they are attached by spring j, andeach rack is moved a suflicient distance to bring the numbers on theirWheels respectively forward and into line at the front ofthe machine.The lever returns to'its normal position'by the action of the spring100, secured to the segment W and to the frame of the machine, (seeFigs. 28, 29, and 30,) and is preferably eased in its movement backwardby means of a dash-pot 24 or other suitable device. Let us suppose thatthe figures written are 125. \Ve are to add to that 216. The operatorstrikes the keys, and the figures 216 are written below the figures 125.The racks are set in of the segthe wheels engages the arm 18 andtheplacing in position the latch 8 in it may engage with the .lip 13 onmotion thenext adjacent wheel F when the lever T was ra f versed, movedit forward one space. There will then be registered on the second Wheelthe sum of 2 that was there in the first place and the-1 caused by therotation of the second wheel by the rack and the further caused by theoperation of the pawl, making the wheel stand at 4. The third wheel hasadded to it the .2 tion of the third wheel, besides the 1 which wasthere in the first instance, making the wheel show 3 and the additionstands on 341. For the purpose of forcing back the pins P, Fig. 2, afterthey have been released by the projection-P on the rocking lever P, Ipreferably arrange on the carriage R the projection 70, (see Fig. 17,)which will engage-with the pins P, and the movement of the carriage willforcethem ack in position. In like manner the projection 71 (see Fig.turns the pins K to their normal position after the movement of theracks. It is necessary to arrange for returning all of the adding-wheelsF to the zero position when about to commence to add a new column offigures. To do this, I have arranged a key 41, Figs. 2 and 16, for eachsection of wheels, preferably placed at the top of the machine, providedat its end with an inclined portion 42, adapted to engage with one ofthe lifts 10 on the adding-wheel, and also connected withthe yoke 44,which yoke engages with each of the pins P and which yoke is fulcrumedto the frame of the machine at 45. Thus by pressing in on the key 41,together with the operation of the lever, each of the racks is releasedfrom its retainingpin P, and they are allowed to revolve under theinfluence of the springs attached at' their ends tothe segmental wheel Juntil the lift on each wheel'engages with its key 41. The wheels arethen registering at zero. It is necessary-to arrange a tabulator inconnection with the machine in order that the figures to be added may beplaced on the paper in their proper position, as tens, hundreds,thousands, &c. essary to move the type-writer carriage and also thecarriage of tached to it to the desired position. complish this,'I showin Figs. 22, 23, and .24 a tabulating device. I lace an arm 25, attachedto a rod 26, w ich has at its end a bevel-gear 27 engaging'with abevel-gear 28 on the end of a vertical rod 29, the vertical rod 29having secured to it at its upper end a gear 30, meshing with a rack 31,which rack 8) on the carriage R re.

, To do this, it would be nec- I caused by therotiaprovided with a rod43, 1

the adding-machine at- To acis movable upon a frame 60, which frame .ispreferably provided with a dovetailed slot within which the rackreciprocates, as shown in Fig. 24. The frame 60 issupported along oneedge tln eof by the rod 37 and is capable of a rocking motion thereon.Along one side of the frame 60, opposite to that of the rod 37, Iarrange projecting lugs 32, each having an inclined upper surfaceadapted to pass under the type-writer carriage-rack 33 when the frame 60is rocked or tilted on the rod 37, and

of the type-writer carriage. 'For the pur pose of stopping the rack ofthe type-writer in a requiredposition I have placed on the rack 31 a.finger 34, which will by the rocking or tilting of the frame be forcedforward in the path of one of a series of pins 35,

placed in the projection 86 in the end of the type-writer rack 33, whichwill sto the rack in the desired position. Thus by lifting up on thehandle 38 of the arm 25 I push forward the lugs 32 and pin 34, making anen gagement between the lug. and the. typewriter rack, and put the pin34 in the line of the path of. one of the pins 35. After the type-writercarriage has been released from engagement with the Wheel 61 it will becarried with considerable force and speed toward the left side of themachine, and if we depend solely upon the engagement of the finger 34and the pin 35 there would be a considerable jar communicated to therods 29 and 26 and their connections. In order to prevent thetransmission of impact betwe en the 'fmger 34 and the pin 35, Ipreferably arrange a plate 62,'provided with a series of holes throughwhich the finger 34 will pass and beyond which plate 62 will project,and adjacent to which plate the pin 35 will engage with the finger.Plate 62 is secured to the frame of the machine and will takesubstantially the force of the blow occasioned by the engagement of thesaid finger and pin. I preferably place in front of the machine a plate39, provided with a series of indentations 40, within which a point onthe crank 25 ma -engage each one of said indentations corresponding tothe position of units,'tens, hundreds, thousands, which willbe thecorresponding position at which the type-writer carriage will be stoppedwhen the crank-arm is moved to one of said positions, respectively, themovement of the rods 26 and 29 bringing the rack 31 to the positionrequired for the projection of the pin-34 in the line of the path of thedesired pin 35 in the projection onthe end 36 of the type-writercarriage.

In Figs. 26. and 27 I show modified form of mechanism for operating theadding-wheel racks and for bringing into engagement therewith theoperating-pins. By this modified form I do away with the segmental wheelJ and simply carry upon the shaft 1 the gear-wheels 64 and 65 and smallgear-wheel u. The gear-wheel u engaging with the segment U, attached tothe lever, as shown in Fig. 2 as well as in Figs. 25 and 27 SegmentlU,engaging with the gear-wheel u and gear 64 on one side of the machine,engaging with the rack which is placed on the side of the pin-carryingplates L, gear 65 on the other side of the machine likewise engag- 8 5ing with the rack with which is connected the I pin-carrying platesL.Plates L are suitably mounted at their ends toallow for their. movementup and down within the frame of the machine. As thus-arranged, as thelever T is pulled forward and sets in motion the gears 64 and 65, thepins K having been projected so that they will engage upon the for wardmovement of the plate L with the sh oulder h of the racks H,respectively, the racks are lifted by the movement of the plates L, andthus theadding-wheels rotated to the point which is determined by thelocation of the pins K. Forthe purpose of returning the racks after themovement of the plates L, I ar- Ioo range a projection 66, Fig. 26, onthe plates L, which will engage with the upper surface of the shoulder71 of the racks H and with the reverse movement of the lever draw theracks H back to their normal position. By this arrangement of the racksI do away with the use of the retaining-pins P, segmental wheel J andthe spring 7', attached to the rack H.

What I claim as my invention, and desire to secure by Letters Patent, isI I0 1. A type-writing machine, an adding device ada ted to be connectedtherewith, consisting o a carriage; a means for connecting said carriagewith the carriage of said typewriting machine; a means for causing the'1 r5' carriage of the adding device to move in a direction opposite tothat of the carriage of the type-writing machine; a series of pinscarried by the carriage of said adding device; a series of'add-ing-Wheels; a series of racks; a means for causing a'partial revolution of.said adding-wheels by the movement of said racks, respectively; a seriesof pins arranged to be operated upon by the pins in said carriagerespectively, whereby they are placed 12 5 in position to determine theamount of the revolution of the said adding-wheels,respct tively a meansfor imparting motion to said racks, substantially as described.

2. The combination of a type-writing ma- 1 o chine and an adding device,said adding device consisting of a series of adding-wheels a series ofracks; 'a mean for causing a partial revolution of said wheels by themqvement of said racks, res eotively; a segties' of pins arranged to beplaced in thepath of themovement of saidraekaires ectively;a carria eprovided with means or acting upon said pins, respectively; a means forconnectlng said carriage withthe carriage of said typewriting machine; ameans for setting said racks in motion, substantially as described.

3 The combination of a type-writing machine and an adding device; saidadding device comprising a each of said adding-wheels provided on itsperiphery with thenumerals zero to nine inclusive; with a means whensaid wheels are revolved, respectively, to zero for causing the nextadjacent wheel to the left to be moved one numeral, making the carry, aseries of racks; a means for causing a partial revolution of said wheelsby the movement of said racks, respectively; a series of pins arrangedto be placed in the said racks, respectively; a carriage provided withmeans for acting upon said pins, respectively; a means for connectingsaid carriage with the carriage of said type-writing machine; a meansfor setting said racks in motion, substantially as described.

4. The combination of the type-writing machine and an adding-machinedevice; said adding device comprising a series of addingwheels; a seriesof racks; a means for causing a partial revolution of said wheels by themovement of said racks, respectively; each of said adding-wheelsprovided on its periphery with the numerals zero to nine, inclusive;with a means when said wheels are revolved, respectively, to zero forcausing the next ad jacent wheel to the left to be moved one numeral,making the carry; a series of pins adapted to be projected within thepath of the movement of said racks, respectively; a means connected withthe carriage of said type-writing machine for operating said pins with ameans for racks, substantially as described.

' 5. The combination of a type-writing machine and an adding device;said adding device consisting of a series of adding-wheels; each of saidadding-wheels provided on its periphery with the numerals zero to nineinelusive; with a means when said wheels are revolved,respectively, tozero for causing the next adjacent wheel to the left to be moved onenumeral thereof, making the carry a series of racks; a means forimparting motion thereto whereby said Wheels Wlll be revolved,respectively; a means for arresting the movement of said racks,respectively; a carriage provided with a means for putting inoperationthe means for arresting the movement of said racks; a means forconnecting said series of adding-wheels;-

-volved past zero t trip to engage the path of the movement of ment ofthe trip imparting motion to said carriage to the carriage of saidtype-writing machine, substantially as described. 6. In an addingdevice; a series of addingwheels, each of which is provided on itsperiphery with the numerals from zero to nine inclusive; each of saidwheels provided with a means for engaging with the'rack; a series ofracks arranged to cause a partial revolution of each ofsaid wheels,respectively; a lever, bythe movement of which said racksand'adding-wheels are set in motion; a series of trips adapted to engagewith the said wheels, respectively; a series of latches arranged to holdsaid trips out of the engagement Withsaid Wheels, respectively; a meansfor causing said latches to lock with said trips a means on said wheelsfor disengaging said latch from said trip when the wheel 1s r eereon andcausing said through said trips to the move said wheel one numeral, thusmaking the carry a means for preventing moveafter' its engagement withthe adjoining w eel to. make the carry until the reverse movement ofsaid lever liber ates said trip, substantially as described.

' '7. In an adding device, a series of addingwheels, each of said wheelsprovided with a series of divisions on its eriphery, each of saiddivisions numbered rom zero to nine, inclusive; a means for impartingmotion to said wheels, respectively, each of said wheels wheel nextadjoining the .one Whichoperates said latch; a means for impartingmotion wheel with which it engages suflicient to provided with a seriesof lifts, the said lift arranged adjacent to the zero positionof each ofSifilld divisions; a

series of trips; a lip arranged on each of said trips; a pawl carried byeach of said trips; a series projection on each of said latches adaptedto engage with each of said lips, res ectively; said pawls adapted toenga 'e wit the periphery of said wheels; each o said latches arrangedto project within the pathway of said lifts, respectively, so adjustedand-connected of latches; a

up that when one of the lifts enga es with the latch, the projectionthereon will e removed from contact with the lip of'the trip; a shaftflattened along part of its contour for causing the trip to move aftersaid disengagement; said pawl and said trip bylsaid movement brought incontact with the periphery of the next adjacent wheel and cause saidWheel to revolve one division thereof; with a means for returning saidtrip to enga ement with said latch and the connection 0 the projece tionthereon with said lip, substantially as described.

8. The combination of a type-writing machine and an adding device, witha series of levers adapted to engage with some of the key-levers, of the-type-writing machine a series of drivers adapted toengage with saidfirst-mentioned levers; a series of pins

